Zeta2 Muscae

For other star systems with this Bayer designation see ζ Muscae
ζ2 Muscae
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Musca
Right ascension 12h 22m 07.34002s[1]
Declination −67° 31′ 19.5871″[1]
Apparent magnitude (V) 5.14[2] + 8.71[3] + 10.7[4]
Characteristics
Spectral type A5 V[5] + G8-K0V[3]
U−B color index +0.13[2]
B−V color index +0.19[2]
Astrometry
Radial velocity (Rv)−17.0[6] km/s
Proper motion (μ) RA: −30.50[1] mas/yr
Dec.: -6.10[1] mas/yr
Parallax (π)9.89 ± 0.34 mas[1]
Distance330 ± 10 ly
(101 ± 3 pc)
Absolute magnitude (MV)+0.13[7]
Details
ζ2 Muscae A
Luminosity66.7[8] L☉
Temperature7,400[8] K
Other designations
CPD−66°1747, FK5 2990, HD 107566, HIP 60320, HR 4703, SAO 251866.[9]
Database references
SIMBADdata

Zeta2 Muscae, Latinized from ζ2 Muscae, is a star[10] in the southern constellation of Musca. Its apparent magnitude is 5.16. This is a white main sequence star of spectral type A5V around 330 light-years distant from Earth.[9] Like several other stars in the constellation, it is a member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association, a group of predominantly hot blue-white stars that share a common origin and proper motion across the galaxy.[11] It is part of a triple star system with faint companions at 0.5 and 32.4 arc seconds distance.[12] The former is an infrared source,[13] the latter has a visual magnitude of 10.7.[4]

  1. ^ a b c d e Cite error: The named reference van Leeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference MERMILLIOD was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference aaa475_2_677 was invoked but never defined (see the help page).
  4. ^ a b "CPD-66 1747B – Star in Double System". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 December 2013.
  5. ^ Cite error: The named reference houk1979 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference al32_11_759 was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Anderson2012 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Mcdonald2012 was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference mnras389_2_869 was invoked but never defined (see the help page).
  11. ^ de Zeeuw, P.T.; Hoogerwerf, R.; de Bruijne, J.H.J.; Brown, A.G.A.; et al. (1999). "A Hipparcos Census of Nearby OB Associations". Astronomical Journal. 117 (1): 354–399. arXiv:astro-ph/9809227. Bibcode:1999AJ....117..354D. doi:10.1086/300682. S2CID 16098861.
  12. ^ Chen, Christine H.; Pecaut, Mark; Mamajek, Eric E.; Su, Kate Y. L.; et al. (2012). "A Spitzer MIPS Study of 2.5-2.0 M☉ Stars in Scorpius–Centaurus". The Astrophysical Journal. 756 (2): 133–57. arXiv:1207.3415. Bibcode:2012ApJ...756..133C. doi:10.1088/0004-637x/756/2/133. S2CID 119278056.
  13. ^ "IRAS 12193-6714 – Star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 25 December 2013.